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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3646) Add 'IGNORE PROTECTION' predicate for dropping partitions
Date Thu, 22 Nov 2012 04:44:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13502580#comment-13502580
] 

Namit Jain commented on HIVE-3646:
----------------------------------

>From the code, it looks like, it doesn't matter if the tables/partitions are hdfs or non-hdfs.
They will be dropped either way.

https://cwiki.apache.org/Hive/languagemanual-ddl.html

Can you document the behavior above ?
                
> Add 'IGNORE PROTECTION' predicate for dropping partitions
> ---------------------------------------------------------
>
>                 Key: HIVE-3646
>                 URL: https://issues.apache.org/jira/browse/HIVE-3646
>             Project: Hive
>          Issue Type: New Feature
>          Components: CLI
>    Affects Versions: 0.9.0
>            Reporter: Andrew Chalfant
>            Assignee: Andrew Chalfant
>            Priority: Minor
>         Attachments: HIVE-3646.1.patch.txt
>
>   Original Estimate: 1m
>  Remaining Estimate: 1m
>
> There are cases where it is desirable to move partitions between clusters. Having to
undo protection and then re-protect tables in order to delete partitions from a source are
multi-step and can leave us in a failed open state where partition and table metadata is dirty.
By implementing an 'rm -rf'-like functionality, we can perform these operations atomically.

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